'The Possession of Hannah Grace' personifies everything that is wrong with the horror genre at the moment. It is so criminally unoriginal, criminally uninspired and most of all criminally not scary. The very first scene of the movie alone must've been done 100 times before almost identically. From there it just gets worse. The settings, the dialogue, the attempted jump-scares from characters doing things no rational human being on earth ever would (I say attempted because nothing in the way of giving you a fright works in this movie). It all equals a very bad film.
If there was a heart-rate monitor attached to me during this movie I can almost guarantee that it went down over the course of the movie and never went up a single beat. I know as much because I was having to work seriously hard not to fall asleep. The creature in this movie wouldn't scare 5 year-olds. What horror filmmakers too often forget is that it's what you don't see that is actually scary, as opposed to what you do. That's why 'Paranormal Activity' was so effective. What we can imagine is so much worse than what they can actually put on screen.
The characters in this film were bloody awful too. The main girl was the only mildly likeable one. The problem with that though is that she's the only character that feels completely safe. 'The Possession of Hannah Grace' never for one second dares to do anything outside the box or daring. It is completely forgettable in every way and not worth your time or effort.